采煤机截煤速度对瓦斯涌出影响的研究  

Study on Impacts of Shearer Cutting Speed on Gas Emission

作　　者：孙广义[1] 曹江朝 郭鹏飞[1] 

机构地区：[1]黑龙江科技大学矿业工程学院,哈尔滨150022

出　　处：《煤炭技术》2014年第3期79-81,共3页Coal Technology

基　　金：国家自然科学基金资助项目(11551z031)

摘　　要：随着采煤机割煤速度的增大,直接导致落煤和煤壁的瓦斯涌出、超前支撑压力增大和采空区及邻近层新的煤岩裂隙产生。超前支撑压力的增大使煤壁深部产生新的节理裂隙并使吸附瓦斯向游离瓦斯转化最终涌向工作面,采空区和邻近层新裂隙的产生会使采空区煤岩层中的瓦斯向采空区运移、邻近层的瓦斯涌向工作面。通过分数体积法在工作面合理布置测点,在三维空间内使瓦斯的涌出变化立体化,通过数值分析软件得出采煤机割煤速度与瓦斯涌出之间的关系,指导煤矿生产,为工作面瓦斯的综合治理提供了参考。As the speed increases cutting coal miner, coal and coal directly affect the wall falling gas emission, advanced support pressures and a gob and adjacent layers of coal and rock fissures new generation. Increasing pressure ahead of supporting the coal to produce new wall deep jointed to promote the adsorption of gas into the free state, the final flock face; gob and the adjacent layers of new generation will crack gob gas to coal mining rocks empty area migration, flock face. This article based on measured data shiroyama mine by fractional volume method in the face rational arrangement of measuring points in three-dimensional space to make changes in three-dimensional gas emission, obtained by numerical analysis software shearer cutting coal between velocity and gas emission relationship, coal production guidance for face gas comprehensive management to provide a reference.

关 键 词：综采工作面 采煤机 瓦斯涌出 数值分析 

分 类 号：TD712[矿业工程—矿井通风与安全]